diff --git a/lua/fittencode/config.lua b/lua/fittencode/config.lua
index 8c0eacc..5d30957 100644
--- a/lua/fittencode/config.lua
+++ b/lua/fittencode/config.lua
@@ -209,7 +209,7 @@ local defaults = {
         -- Avaiable options:
         -- * 'curl'
         -- * 'libcurl' (Only available on Linux)
-        backend = 'curl',
+        backend = 'libcurl',
         -- 0 (zero) which means request never times out during transfer
         timeout = 600, -- seconds
         curl = {
diff --git a/lua/fittencode/hash/md5sum.lua b/lua/fittencode/hash/md5sum.lua
index f759fbb..a691a3f 100644
--- a/lua/fittencode/hash/md5sum.lua
+++ b/lua/fittencode/hash/md5sum.lua
@@ -20,7 +20,7 @@ function M.hash(method, plaintext, on_success, on_error)
         Fn.schedule_call(on_error)
         return
     end
-    Process.spawn(md5sum, md5sum.args, {
+    Process.spawn(md5sum, {
         on_input = function()
             return plaintext
         end,
diff --git a/lua/fittencode/http/libcurl/init.lua b/lua/fittencode/http/libcurl/init.lua
index 00428a0..7a45bd8 100644
--- a/lua/fittencode/http/libcurl/init.lua
+++ b/lua/fittencode/http/libcurl/init.lua
@@ -1,4 +1,5 @@
 package.cpath = package.cpath .. ';' .. require('cpath')
+-- package.cpath = package.cpath .. ';' .. require('fittencode.http.libcurl.cpath')
 
 local CC = require('libcurl')
 local Fn = require('fittencode.fn')